Oh, there is a thread about the movie.
Regarding the supposed display of human nature: what bothers me about newer movies, since around 2000, is that they seem to tend to make up good acting with a) obviously CGI b) stupid little ploys to make you get emotional with the characters. For example, nowadays there always seems to be the guy who is so desperately stupid that you just have to hate him. Where I disagree with Marley is, that it's mostly not realistically stupid.. people can be pretty crappy, but they are not that bad. Especially when, as in this movie, someone has to endure years of training and discipline to be selected into the most important scientific program in history.. a person like that has matured to such a degree, that behavior like Dr. Mann's in this movie would be highly unlikely.
At the end the person we are supposed to hate suddenly turns nice or enlightened (in a way that is highly unrealistic as well), or dies, which the director obviously feels should create a relief that will make up for all the shit you had to endure the 1, 2 previous hours.
I enjoyed the story, and obviously the visuals, and I think the movie had a lot of potential. There are obviously a lot of bright minds with great ideas out there. What genuinely pisses me off is that Hollywood nowadays seems to feel it is not worth to put that much effort into producing an all around great movie with heart and soul, because a grandiose story and CGI will sell anything.
If you want to be genuinely blown away in all aspects by a space movie, watch Contact (1997) or 2001 (1968). Or just watch basically any episode of Star Trek TNG, or any Star Trek series.. I can't really judge it this quickly, but off the cuff I'd say there's better acting in any of them than in Interstellar.. even DS9 and Enterprise, which can be pretty bad at times